Multi-Functional Laparoscopic Trocar for Integrated Tissue Retrieval
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Solution Overview
Problem
Conventional surgical trocars are limited in functionality, requiring multiple instruments and steps for procedures like appendectomies, leading to inefficiency and increased risk of injury to intraperitoneal organs during laparoscopic surgeries.
Innovation Solution
A multi-functional laparoscopic trocar with integrated mechanisms for isolating, dividing, and retrieving tissue using filaments, a blade, and an endo-stapling device, allowing for inline tissue manipulation and disposal without additional devices, reducing the need for multiple instruments and steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional trocars are used with multiple separate instruments, then each instrument can be optimized for its specific function, but the surgical procedure becomes time-consuming and complex due to repeated instrument changes
Solution Approach 1:
The patent combines multiple surgical functions (tissue division, ligation, retrieval) into a single integrated trocar device. The trocar body incorporates a blade for cutting, filaments for ligation, and a retrieval bag, eliminating the need for multiple separate instruments and reducing procedural complexity while maintaining functional versatility.
Solution Approach 2:
The enhanced trocar is designed as a multi-functional device that can perform various surgical tasks including tissue division, ligation, and specimen retrieval through a single insertion site. This universal design allows one instrument to replace multiple specialized instruments, streamlining the surgical procedure.
2Adaptability or versatility
If multiple instruments are passed back and forth through trocars, then different surgical tasks can be performed, but the risk of injury to intraperitoneal organs increases
Solution Approach 1:
By merging multiple surgical functions into a single integrated trocar device, the number of instrument insertions and withdrawals is dramatically reduced. The blade, filaments, and retrieval bag all operate through one trocar site, minimizing the opportunities for accidental injury to intraperitoneal organs that would occur with multiple separate instruments.
3Productivity
If a single instrument is used for all tasks, then instrument handling is minimized, but the device must be highly complex to perform multiple functions
Solution Approach 1:
The patent employs a nested structure where the blade, filaments, and retrieval bag are housed within the trocar body. The filaments can be advanced through the trocar body lumen, and the retrieval bag is positioned within the trocar cavity, creating a compact nested arrangement that enables multiple functions without excessive external complexity.
Solution Approach 2:
The device is segmented into distinct functional components (blade, filaments, retrieval bag) that can operate independently within the integrated structure. This segmentation allows each component to perform its specific function while maintaining overall device simplicity and ease of operation.
Data Source
AI summary
An enhanced trocar for laparoscopic surgery has a proximal end, a distal end, and a tubular trocar body connecting and extending between the ends. The trocar body is shaped and sized to receive inline and retain therein tissue isolated and divided during a laparoscopic surgical procedure, to permit a surgeon to remove such tissue from the surgical site and dispose of the removed tissue without an additional dedicated disposal device.